CN106466947A

CN106466947A - A kind of composite and preparation method thereof

Info

Publication number: CN106466947A
Application number: CN201510520142.5A
Authority: CN
Inventors: 蔡明�; 柯有和
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2015-08-21
Filing date: 2015-08-21
Publication date: 2017-03-01
Anticipated expiration: 2035-08-21
Also published as: WO2017031942A1; CN106466947B

Abstract

The embodiment of the invention discloses a kind of composite and preparation method thereof.Embodiment of the present invention composite is applied to electronic equipment casing, including resistance to deformation material layer and anodic oxidation material layer, passes through metallurgical binding or solid phase binding, land thickness is within 0.5mm between resistance to deformation material layer and anodic oxidation material layer；Yield strength 300～the 1500MPa of the material in resistance to deformation material layer, elastic modelling quantity 65～300GPa；Material in resistance to deformation material layer includes at least one of aluminum alloy materials, aluminum matrix composite, stainless steel material, alloy ferrous materials, amorphous alloy material, magnesium alloy, or magnesium base composite material.In the embodiment of the present invention, composite is effectively homogeneous because the anodic oxidation material layer on top layer enables composite anode oxidation coloration to obtain formation, coloury color, and because the resistance to deformation material layer of composite makes it have high-yield strength, high elastic modulus are it is ensured that this composite is not susceptible to bend.

Description

A kind of composite and preparation method thereof

Technical field

The present invention relates to field of material technology, particularly to a kind of composite and preparation method thereof.

Background technology

The today developing rapidly in consumption electronic product, mobile phone as daily necessities almost staff one, And selecting in the middle of the process of mobile phone, the aesthetic measure of phone housing becomes consumer buys mobile phone needs to consider One of factor, and 5 line aluminium alloys of beautiful decoratively anodizing and 6 line aluminium alloys can be done not only Have moderate intensity it is often more important that the color of the homogeneous texture that consumer is liked can be made, such as black, Lycoperdon polymorphum Vitt, true qualities, rose golden etc..

But the mobile phone battery cover that currently employed 5 line aluminium alloys or 6 line aluminium alloys make still suffers from problems with, Because 5 line aluminium alloys or 6 line aluminium alloy elastic modelling quantity are less, yield strength is not enough, leads to consumer to exist Can find during use that its mobile phone occurs buckling phenomenon, in order to avoid bending the generation of result, just must More high-yield strength, the material of more high elastic modulus, such as high-yield strength, more high resiliency need be selected The aluminum alloy materials of modulus or aluminum matrix composite are (as aluminium base graphene composite material, aluminium base carbon nanometer Granular composite of pipe composite, aluminium base etc.), although these materials have preferable yield strength and Elastic modelling quantity, but due to high strength alumin ium alloy have that alloying level is too high and aluminum matrix composite exist different Material such as Graphene etc., and make these materials preferably can not carry out anodized surface process it is difficult to Form effectively homogeneous color, thus limiting its application in consumer electronics field such as mobile phones.

Content of the invention

Embodiments provide a kind of composite and preparation method thereof, compound in the embodiment of the present invention Material can obtain effectively homogeneous, the coloury color of formation by anode oxidation coloration, have high yield again Intensity, high elastic modulus, it is not susceptible to bend.

Embodiment of the present invention first aspect provides a kind of composite, is applied to electronic equipment casing, bag Include resistance to deformation material layer and anodic oxidation material layer, described resistance to deformation material layer and described anodic oxidation material Pass through metallurgical binding or solid phase binding, described land thickness is within 0.5mm between layer；

Material in described resistance to deformation material layer includes aluminum alloy materials, titanium alloy material, aluminum-base composite material Material, stainless steel material, alloy ferrous materials, amorphous alloy material, magnesium alloy or magnesium base composite material At least one of；Wherein, in described resistance to deformation material layer material yield strength 300～1500MPa, bullet Property modulus 65～300GPa；Described resistance to deformation layer thickness is 0.2～30mm；

Material in described anodic oxidation material layer is 5 line aluminium alloys, 6 line aluminium alloys or fine aluminium, described sun In the layer of oxidized material of pole, aluminium element content is more than 90%；Described anodic oxidation layer thickness be 0.005mm～ 30mm.

In conjunction with the embodiment of the present invention in a first aspect, the first in the first aspect of the embodiment of the present invention can In the implementation of energy,

In the case that the material in described resistance to deformation material layer includes aluminum alloy materials, described resistance to deformation material Material in the bed of material also includes Graphene, multi-walled carbon nano-tubes, at least one in nickel-plated carbon SiClx.

The first possible implementation of first aspect in conjunction with the embodiment of the present invention or first aspect, In the possible implementation of the second of the first aspect of the embodiment of the present invention,

Described composite also includes injected plastics material layer, described injected plastics material layer and described resistance to deformation material layer Between pass through metallurgical binding or solid phase binding, and described injected plastics material layer and described anodic oxidation material layer divide Not Wei Yu described resistance to deformation material layer both sides；

The material of described injected plastics material layer is 5 line aluminium alloys, 6 line aluminium alloys or fine aluminium, described injected plastics material In layer, aluminium element content is more than 90%；

Described injected plastics material thickness degree is 0.005～30mm.

In conjunction with the embodiment of the present invention in a first aspect, the first possible implementation or of first aspect The possible implementation of the second of one side, the third in the first aspect of the embodiment of the present invention may Implementation in,

Yield strength 350～the 600MPa of described resistance to deformation material, elastic modelling quantity 65～210GPa.

In conjunction with the embodiment of the present invention in a first aspect, the first possible implementation or of first aspect The possible implementation of the second of one side, in the 4th kind of possibility of the first aspect of the embodiment of the present invention Implementation in,

Yield strength 1000～the 1500MPa of described resistance to deformation material, elastic modelling quantity 180～300GPa.

Embodiment of the present invention second aspect provides the shell of a kind of electronic equipment, the shell of described electronic equipment By the composite processing as described in the possible embodiment of any one in above-mentioned first aspect or first aspect Obtain, in 0.21～90mm, the thickness of described deformable material is the thickness of the shell of described electronic equipment 0.005mm～30mm, the thickness of described anodic oxidation material layer is 0.2～30mm.

The embodiment of the present invention third aspect provides a kind of electronic equipment, including the electricity described in above-mentioned second aspect The shell of sub- equipment.

Embodiment of the present invention fourth aspect provides a kind of composite material and preparation method thereof, including：

Choose anodic oxidation material, resistance to deformation material, wherein, the yield strength of described resistance to deformation material 300～1500MPa, elastic modelling quantity 65～300GPa；Described resistance to deformation material includes aluminum alloy materials, titanium Alloy material, aluminum matrix composite, stainless steel material, alloy ferrous materials, amorphous alloy material, magnesium At least one of alloy or magnesium base composite material；Described anodic oxidation material is 5 line aluminium alloys, and 6 is aluminum Alloy or fine aluminium, in described anodic oxidation material layer, aluminium element content is more than 90%；

Described anodic oxidation material, described resistance to deformation material are carried out compression process, obtains double-deck material embryo；

Described double-deck material embryo is carried out heat treatment reinforcement under the heat treating regime of described resistance to deformation material, obtains To double-layer composite material.

In conjunction with the fourth aspect of the embodiment of the present invention, the first in the fourth aspect of the embodiment of the present invention can In the implementation of energy,

Described heat treating regime is T6 heat treating regime, T8 heat treating regime, T4 heat treating regime, T5 Heat treating regime or T2 heat treating regime.

The first possible implementation of fourth aspect in conjunction with the embodiment of the present invention or fourth aspect, In the possible implementation of the second of the fourth aspect of the embodiment of the present invention,

In the case that described resistance to deformation material includes aluminum alloy materials, described resistance to deformation material also includes stone At least one in black alkene, multi-walled carbon nano-tubes, nickel-plated carbon SiClx.

In conjunction with the fourth aspect of the embodiment of the present invention, the first possible implementation of fourth aspect or The possible implementation of the second of four aspects, the third in the fourth aspect of the embodiment of the present invention may Implementation in,

In the case that described anodic oxidation material and described resistance to deformation material are all in powder；

Described described anodic oxidation material, described resistance to deformation material are carried out compression process, obtain double-deck material Embryo, specifically includes：

The powder of described anodic oxidation material is suppressed, is obtained the anodic oxidation material of 0.005～30mm Idiosome；

The powder of described resistance to deformation material is layered on described anodic oxidation material idiosome and is suppressed, Obtain the double-deck idiosome of 0.205～60mm, wherein, after the repressed process of powder of described anodic oxidation material The thickness of the anodic oxidation material layer obtaining is 0.005～30mm, and the powder of described resistance to deformation material is repressed The thickness of the described resistance to deformation material layer obtaining after process is 0.2～30mm；

Described bilayer idiosome is placed in sintering furnace, with the ramp of 2 DEG C/min～5 DEG C/min to 0.80Tm ～0.90Tm, is incubated 15min～35min；Again Tm is warming up to the heating rate of 9 DEG C/min～18 DEG C/min Temperature, is then cooled to 0.80Tm～0.90Tm with the speed of 9 DEG C/min～18 DEG C/min, continues insulation 70min～105min, obtains double-deck material embryo after cooling.

In conjunction with the fourth aspect of the embodiment of the present invention, the first possible implementation of fourth aspect or The possible implementation of the second of four aspects, in the 4th kind of possibility of the fourth aspect of the embodiment of the present invention Implementation in,

The powder of described resistance to deformation material is suppressed, is obtained the resistance to deformation material embryo of 0.005～30mm Body；

The powder of described anodic oxidation material is layered on described resistance to deformation material idiosome and is suppressed, Obtain the double-deck idiosome of 0.205～60mm, wherein, after the repressed process of powder of described anodic oxidation material The thickness of the anodic oxidation material layer obtaining is 0.005～30mm, and the powder of described resistance to deformation material is repressed The thickness of the described resistance to deformation material layer obtaining after process is 0.2～30mm；

In conjunction with the fourth aspect of the embodiment of the present invention, the first possible implementation of fourth aspect or The possible implementation of the second of four aspects, in the 5th kind of possibility of the fourth aspect of the embodiment of the present invention Implementation in,

In the case that described anodic oxidation material and described resistance to deformation material are all in sheet；

Described anodic oxidation material in sheet and the described resistance to deformation material in sheet are passed through extruding Shape or roll forming, obtain double-deck material embryo.

In conjunction with the fourth aspect of the embodiment of the present invention, the first possible implementation of fourth aspect or The possible implementation of the second of four aspects, in the 6th kind of possibility of the fourth aspect of the embodiment of the present invention Implementation in,

In described anodic oxidation material and described resistance to deformation material one be in powder, another be in sheet material In the case of shape；

The material in described anodic oxidation material, described resistance to deformation material being in powder is compressed to idiosome, And sintered be cooled to expect embryo；

To be in the material of sheet and described material embryo in described anodic oxidation material, described resistance to deformation material, Molding by extrusion or roll forming, obtains double-deck material embryo.

The embodiment of the present invention the 5th aspect provides a kind of composite material and preparation method thereof, including：

Choose anodic oxidation material, resistance to deformation material and injected plastics material, wherein, described resistance to deformation material Yield strength 300～1500MPa, elastic modelling quantity 65～300GPa；Described resistance to deformation material includes aluminium alloy Material, titanium alloy material, aluminum matrix composite, stainless steel material, alloy ferrous materials, non-crystaline amorphous metal At least one of material, magnesium alloy or magnesium base composite material；Described anodic oxidation material is that aluminum closes for 5 Gold, 6 line aluminium alloys or fine aluminium, in described anodic oxidation material layer, aluminium element content is more than 90%；Described note Moulding material is 5 line aluminium alloys, 6 line aluminium alloys or fine aluminium, and in described injected plastics material, aluminium element content is more than 90%；

Described anodic oxidation material, described resistance to deformation material and described injected plastics material are carried out compression process, Obtain three layered material embryos, the intermediate layer of described three layered material embryos is resistance to deformation material layer, described resistance to deformation material warp Form described resistance to deformation material layer after compression process；

Described three layered material embryos are carried out heat treatment reinforcement under the heat treating regime of described resistance to deformation material, obtains To 3-layer composite material.

In conjunction with the 5th aspect of the embodiment of the present invention, the first at the 5th aspect of the embodiment of the present invention can In the implementation of energy,

In conjunction with the 5th aspect of the embodiment of the present invention or the first possible implementation of the 5th aspect, In the possible implementation of the second of the 5th aspect of the embodiment of the present invention,

In conjunction with the 5th aspect of the embodiment of the present invention, the first possible implementation of the 5th aspect or The possible implementation of the second of five aspects, the third at the 5th aspect of the embodiment of the present invention may Implementation in,

It is in powder, described injected plastics material in sheet material in described anodic oxidation material and described resistance to deformation material In the case of shape；

Described described anodic oxidation material, described resistance to deformation material and described injected plastics material are carried out at compacting Reason, obtains three layered material embryos, the intermediate layer of described three layered material embryos is described resistance to deformation material layer, including：

The powder of described resistance to deformation material is layered on described anodic oxidation material idiosome and is suppressed, Obtain the double-deck idiosome of 0.205～60mm, wherein, described anodic oxidation material idiosome is repressed process after shape The thickness of the anodic oxide coating becoming is 0.005～30mm, described resistance to deformation material is repressed process after formed The thickness of described resistance to deformation material layer is 0.2～30mm；

Described bilayer idiosome is placed in sintering furnace, with the ramp of 2 DEG C/min～5 DEG C/min to 0.80Tm ～0.90Tm, is incubated 15min～35min；Again Tm is warming up to the heating rate of 9 DEG C/min～18 DEG C/min Temperature, is then cooled to 0.80Tm～0.90Tm with the speed of 9 DEG C/min～18 DEG C/min, continues insulation 70min～105min, obtains double-deck material embryo after cooling；

By in sheet and thickness is that the injected plastics material of 0.005～30mm is placed under described double-deck material embryo, warp Extrusion molding or roll forming, obtain three layered material embryos, the intermediate layer of described three layered material embryos is described resistance to deformation Material layer.

In conjunction with the 5th aspect of the embodiment of the present invention, the first possible implementation of the 5th aspect or The possible implementation of the second of five aspects, in the 4th kind of possibility of the 5th aspect of the embodiment of the present invention Implementation in,

The powder of described anodic oxidation material is layered on described resistance to deformation material idiosome and is suppressed, Obtain the double-deck idiosome of 0.205～60mm, wherein, described anodic oxidation material idiosome is repressed process after shape The thickness of the anodic oxide coating becoming is 0.005～30mm, described resistance to deformation material is repressed process after formed The thickness of described resistance to deformation material layer is 0.2～30mm；

In conjunction with the 5th aspect of the embodiment of the present invention, the first possible implementation of the 5th aspect or The possible implementation of the second of five aspects, in the 5th kind of possibility of the 5th aspect of the embodiment of the present invention Implementation in,

In described anodic oxidation material, the described resistance to deformation material and described injected plastics material feelings all in powder Under condition；

Described described anodic oxidation material, described resistance to deformation material and described injected plastics material are carried out at compacting Reason, obtains three layered material embryos, described resistance to deformation material is repressed process after the resistance to deformation material layer that formed be located at The intermediate layer of described three layered material embryos, including：

The powder of described resistance to deformation material is layered on described anodic oxidation material idiosome and is suppressed, Obtain the double-deck idiosome of 0.205～60mm；

The powder of described injected plastics material is layered on described bilayer idiosome and is suppressed, obtain Three layers of idiosome of 0.21～90mm, wherein, the thickness of described three layers of idiosome Anodic Oxidation material layer is 0.005～30mm, the thickness of described resistance to deformation material layer is 0.2～30mm, described injected plastics material thickness degree For 0.005～30mm, the intermediate layer of described three layers of idiosome is described resistance to deformation material layer；

Described three layers of idiosome are placed in sintering furnace, with the ramp of 2 DEG C/min～5 DEG C/min to 0.80Tm ～0.90Tm, is incubated 15min～35min；Again Tm is warming up to the heating rate of 9 DEG C/min～18 DEG C/min Temperature, is then cooled to 0.80Tm～0.90Tm with the speed of 9 DEG C/min～18 DEG C/min, continues insulation 70min～105min, obtains three layered material embryos after cooling.

In conjunction with the 5th aspect of the embodiment of the present invention, the first possible implementation of the 5th aspect or The possible implementation of the second of five aspects, in the 6th kind of possibility of the 5th aspect of the embodiment of the present invention Implementation in,

The powder of described anodic oxidation material is layered on described resistance to deformation material idiosome and is suppressed, Obtain the double-deck idiosome of 0.205～60mm；

In conjunction with the 5th aspect of the embodiment of the present invention, the first possible implementation of the 5th aspect or The possible implementation of the second of five aspects, in the 7th kind of possibility of the 5th aspect of the embodiment of the present invention Implementation in,

In described anodic oxidation material, the described resistance to deformation material and described injected plastics material feelings all in sheet Under condition；

Described described anodic oxidation material, described resistance to deformation material and described injected plastics material are carried out at compacting Reason, obtains three layered material embryos, specifically includes：

By the described anodic oxidation material in sheet, in sheet described resistance to deformation material and be in sheet material The described injected plastics material of shape is molding by extrusion or roll forming obtains three layered material embryos, wherein, described three layers The intermediate layer of material embryo is described resistance to deformation material layer.

In conjunction with the 5th aspect of the embodiment of the present invention, the first possible implementation of the 5th aspect or The possible implementation of the second of five aspects, in the 8th kind of possibility of the 5th aspect of the embodiment of the present invention Implementation in,

One of which material in described anodic oxidation material, described resistance to deformation material and described injected plastics material In powder, in addition bi-material be in sheet in the case of；

It will be in the material of powder in described anodic oxidation material, described resistance to deformation material and described injected plastics material Material is compressed to idiosome；

Described idiosome is placed in sintering furnace, with the ramp of 2 DEG C/min～5 DEG C/min to 0.80Tm ～0.90Tm, is incubated 15min～35min；Again Tm is warming up to the heating rate of 9 DEG C/min～18 DEG C/min Temperature, is then cooled to 0.80Tm～0.90Tm with the speed of 9 DEG C/min～18 DEG C/min, continues insulation 70min～105min, obtains after cooling expecting embryo；

By described other two kinds be in sheet materials and described material embryo is molding by extrusion or roll forming obtains To three layered material embryos, wherein, described three layered material embryo intermediate layers are resistance to deformation material layer.

As can be seen from the above technical solutions, the embodiment of the present invention has advantages below：

In the embodiment of the present invention composite due to the anodic oxidation material layer on top layer enable composite sun Pole heat-tinting obtains and forms effectively homogeneous, coloury color, and the resistance due to composite Shape material layer makes it have high-yield strength, high elastic modulus it is ensured that this composite be not susceptible to curved Bent.

Brief description

Fig. 1 is an embodiment schematic diagram of composite in the embodiment of the present invention；

Fig. 2 is another embodiment schematic diagram of composite in the embodiment of the present invention；

Fig. 3 is an embodiment schematic diagram of the preparation method of composite in the embodiment of the present invention；

Fig. 4 is an embodiment schematic diagram of the preparation method of composite in the embodiment of the present invention.

Specific embodiment

Embodiments provide a kind of composite and preparation method thereof, compound in the embodiment of the present invention Material can obtain effectively homogeneous, the coloury color of formation by anode oxidation coloration, have high yield again Intensity, more high elastic modulus, are not susceptible to bend.

In order that those skilled in the art more fully understand the present invention program, real below in conjunction with the present invention Apply the accompanying drawing in example, the technical scheme in the embodiment of the present invention is clearly and completely described it is clear that Described embodiment is only the embodiment of a present invention part, rather than whole embodiments.It is based on Embodiment in the present invention, those of ordinary skill in the art are obtained under the premise of not making creative work The every other embodiment obtaining, all should belong to the scope of protection of the invention.

Term " first " in description and claims of this specification and above-mentioned accompanying drawing, " second " etc. are (such as Fruit exists) it is for distinguishing similar object, without for describing specific order or precedence. It should be appreciated that such data using can be exchanged, in the appropriate case so that the embodiments described herein energy Enough with except illustrate here or the content of description in addition to order implement.Additionally, term " inclusion " and " tool Have " and they any deformation it is intended that cover non-exclusive comprising, for example, contain a series of The process of step or unit, method, system, product or equipment are not necessarily limited to those steps clearly listed Rapid or unit, but may include clearly not listing or for these processes, method, product or set Standby intrinsic other steps or unit.

Some concepts that first embodiment of the present invention be may relate to below are simply introduced.

5 line aluminium alloys：The wrought aluminium alloy with Mg as main alloy element, i.e. Al-Mg, belong to relatively Conventional alloy aluminum series, magnesium content, between 3-5%, is properly termed as almag again, main inclusion 5052nd, 5005,5083 and 5A05 series etc., 5 line aluminium alloys are mainly characterized in that density is low, tensile strength Height, elongation percentage is high.Under equal area almag weigh less than other series. therefore be commonly used in aviation, Ship aspect, such as fuel tanker, apply also relatively broad in regular industrial, and processing technique is continuous casting Tandem rolling, belongs to hot rolled aluminium series therefore can do oxidation deep processing, 5 line aluminium alloys are not heat-treatable strengthened aluminum Alloy.

6 line aluminium alloys：It is the i.e. Al-Mg-Si with the wrought aluminium alloy of Mg, Si main alloy element, 6 Line aluminium alloy is heat-treatable strengthened aluminum alloy, mainly has 6063,6061 at present, other have 6082,6125, 6262nd, 6060,6005,6463, wherein 6063,6060,6463 in 6 line aluminium alloys intensity compare Low；6262nd, 6005,6082,6061 in 6 line aluminium alloys intensity higher, 6 line aluminium alloy characteristics： Moderate strength, corrosion resistance and good, good welding performance, processing performance good (easy extrusion molding) aoxidizes Color performance is good, and 6 line aluminium alloys mainly should be in such as automobile luggage racks, door, window, vehicle body, radiating door, shell Deng.

7 line aluminium alloys：Alloying element is based on zinc, but sometimes also will with the addition of magnesium, copper on a small quantity, wherein super Duralumin, hard alumin ium alloy is exactly the hardness containing zinc, lead, magnesium and copper alloy close to steel, and extrusion speed is aluminum compared with 6 Alloy is slow, and good welding performance has good wearability, heat-treatable strengthened, 7 line aluminium alloys are mainly applied (load-carrying member of aircraft, undercarriage), rocket, propeller, aeronautical etc. in terms of aviation, mainly It is 7 to be including 7075,7005,7003,7055,7050,7072 etc., wherein 7005 and 7075 Highest class, 7075 aluminium sheets are through eliminating stress, will not deform, warpage after processing, 7075 aluminium sheets Thermal conductance is high, can improve work efficiency with shortening forming time, be mainly characterized by hardness greatly, and 7075 is high Hardness, the aluminium alloy of high intensity.

Yield strength：It is the yield limit that metal material occurs during yield phenomenon, that is, resist micro plasticity The stress of deformation.Metal material for no remarkable yield is it is stipulated that to produce the stress of 0.2% residual deformation It is worth for its yield limit, referred to as proof stress or yield strength.Act on more than the external force of this limit, Part permanent failure will be made it is impossible to recover.Yield limit as mild steel is 207MPa, when more than this The limit external force effect under, part will produce permanent deformation, less than this, part also can recover Appearance originally.

Elastic modelling quantity：The general definition of elastic modelling quantity be stress divided by strain, material in elastic deformation stage, Its stress and strain direct proportionality (meets Hooke's law), and its proportionality coefficient is referred to as elastic modelling quantity. The unit of elastic modelling quantity is that dyne is every square centimeter or GPa, and elastic modelling quantity is of description elasticity of materials Physical quantity, is a general name, including Young's moduluss, modulus of shearing, bulk moduluses etc..

Elastic modelling quantity can be considered weighs the index that material produces elastic deformation complexity, and its value is bigger, makes The stress of the material certain elastic deformation of generation is also bigger, and that is, material stiffness is bigger, that is, is necessarily answering masterpiece With under, occur elastic deformation less.Elastic modulus E refers to that material produces unit elasticity under external force Stress required for deformation.It is the index that elastic deformability resisted by reflection material, is equivalent to ball Rigidity in spring.

Elongation percentage (δ)：Material after tension failure, the percentage ratio of general extension and original gauge length.Work The material of δ >=5% is referred to as plastic material, the mild steel of gentle and quiet load as usual, aluminum, copper etc. by Cheng Shangchang；And handle The material of δ≤5% is referred to as fragile material, as usual gentle and quiet carry under cast iron, glass, pottery etc..

Tensile strength：Characterize the drag of material maximum uniform plastic deformation, tensile sample is bearing maximum Before tension, deformation is uniformity, but beyond afterwards, metal starts necking, that is, Produce and concentrate deformation；For the fragile material not having (or very little) uniform plastic deformation, it reflects material The fracture resistance of material.Symbol is Rm (GB/T 228-1987 old national regulations tensile strength symbol is σ b), Unit is MPa.

Hardness, physics profession term, material local is resisted hard thing and is pressed into the ability on its surface and is referred to as hardness. The solid local resistivity that object is invaded to external world, is the index of comparison various material soft or hard, including Lip river Family name's hardness HR, Brinell hardness HB, vickers hardness hv, microhardness HM, lee ' hardness HL, Xiao Family name's hardness HS, hardness Barcol HBa, webster hardness HW etc..

Extrusion molding：Blank, under the uneven action of compressive stress of three-dimensional, is extruded from the aperture of mould or gap Be allowed to cross-sectional area reduce length increase, become required product processing method cry extrude, blank this Extrusion molding is in processing.

Roll forming：Also referred to as roll forming, is to make metal stock progressively deform using the roll of rotation to make The forging forming method of workpiece, belongs to swaging, deformation during roll forming be progressively, continuous, Rotation, so production efficiency is high, equipment operation is steady, it is easy to accomplish mechanization and automatization, shapes Rolling is generally divided into axial rolling, transverse rolling and oblique milling.

Fine aluminium：Typically alleged fine aluminium refers to commercial-purity aluminium, commercial-purity aluminium be typically set to purity be 99.0%～ 99.9% aluminum, China is set to the aluminum that purity is 98.8%～99.7%.

As shown in table 1 below, the parameter comparison of some materials is as follows：

Table 1

In upper table 1,5052-H32 is to widely use in 5 line aluminium alloys to do outside electronic equipment (as mobile phone) etc. The material of shell, 6063-T6 is to widely use in 6 line aluminium alloys to do the shells such as electronic equipment (as mobile phone) Material, because 5 line aluminium alloys or 6 line aluminium alloy elastic modelling quantity are less, yield strength is not enough, leads to disappear Expense person can find that its mobile phone occurs buckling phenomenon in use.

And the material of some high-yield strengths and high elastic modulus is (as 7 line aluminium alloys in above-mentioned table 1 7003-T5,7055-T7,7075-T6 etc.) due to can not preferably carry out anodized surface process, difficult To form effectively homogeneous color, due to this critical defect, thus limiting it in consumer electronics such as mobile phones The application in field.

Based on this, provide a kind of composite and preparation method thereof in the embodiment of the present invention so that this is multiple Condensation material both can guarantee that the anodised effect of material, is avoided that buckling phenomenon again.

Continue with the technical scheme inquiring into the embodiment of the present invention.

First introduce composite provided in an embodiment of the present invention, composite master provided in an embodiment of the present invention Electronic equipment casing to be applied to, such as mobile phone, flat board, Intelligent worn device etc..

As shown in figure 1, a kind of composite, including resistance to deformation material layer 101, and combine described anti- The anodic oxidation material layer 102 of deformable material layer surface；

Wherein, the yield strength 300～1500MPa of the material in described resistance to deformation material layer, elastic modelling quantity 65～300GPa；

It is multiple that material in described resistance to deformation material layer can include aluminum alloy materials, titanium alloy material, aluminium base Condensation material, stainless steel material, alloy ferrous materials, amorphous alloy material, magnesium alloy or magnesio are combined At least one of material；Wherein, aluminum matrix composite can be aluminium base graphene composite material, aluminium base carbon Nanometer tube composite materials, aluminum-base silicon carbide composite, or aluminium base Graphene and CNT adulterate simultaneously Composite etc..

Material in described anodic oxidation material layer can be 5 line aluminium alloys, 6 line aluminium alloys or fine aluminium, institute State aluminium element content in anodic oxidation material layer and be more than 90%；

As an alternative embodiment of the invention, the material in described resistance to deformation material layer includes aluminium alloy In the case of material, the material in described resistance to deformation material layer also include Graphene, multi-walled carbon nano-tubes, At least one in nickel-plated carbon SiClx.

In the present embodiment, through the continuous test of inventor, the yield strength of described resistance to deformation material 300～1500MPa, during elastic modelling quantity 65～300GPa, can be very good to meet the height of electronic equipment casing Intensity, the electronic equipment casing being now made up of above-mentioned composite extremely difficult bending under normal usage, And aluminium element content is optimal more than 90% guarantee anodic oxidation effect in anodic oxidation material layer.

Preferably, in some embodiments of the invention, aluminium element content in anodic oxidation material layer 101 95% can be more than, to reach more preferable anodic oxidation effect.

When the material in described resistance to deformation material layer is high-strength aluminum alloy, such as in 7 line aluminium alloys 7075, the yield strength 350～600MPa of material, elastic modelling quantity in described resistance to deformation material layer 65～210GPa, preferably, can be yield strength 450～550MPa, elastic modelling quantity 75～180GPa.

When the material in described resistance to deformation material layer is stainless steel, material in described resistance to deformation material layer Material elastic modelling quantity in 180～more than 300GPa, yield strength in 1000～1500MPa, preferably, Can be elastic modelling quantity in 200～more than 250GPa, yield strength is in 1100～1400MPa.

Preferably, in described resistance to deformation material layer material tensile strength 510～2000MPa, hardness 130～900HV, elongation percentage ＞ 5%；Further, in described resistance to deformation material layer, material can be：Anti- Tensile strength 600～700MPa, yield strength 350～600MPa, elastic modelling quantity 80～210GPa, hardness 150～400HV, elongation percentage ＞ 5.5%.

In the present embodiment, preferably, for the needs adapting to distinct electronic apparatuses shell, electronic equipment The span of the thickness of shell can be in 0.21～60mm, wherein, described anodic oxidation material layer 101 Thickness can be 0.005mm～30mm, and described resistance to deformation material layer 102 thickness can be 0.2～30mm.

As shown in Fig. 2 described composite can also include injected plastics material layer 103, described injected plastics material layer Pass through metallurgical binding or solid phase binding between 103 and described resistance to deformation material layer 102, and described injected plastics material Layer and described anodic oxidation material layer 101 are located at the both sides of described resistance to deformation material layer 102 respectively, now, The span of the thickness of electronic equipment casing can be in 0.21～90mm, wherein, described anodic oxidation Material layer 101 thickness can be 0.005mm～30mm, and described resistance to deformation material layer 102 thickness can be 0.2～30mm, described injected plastics material thickness degree can be 0.005～30mm.

Generally, electronic equipment casing one side needs to colour (anodic oxidation material layer), simultaneously needs Carry out micron with working of plastics or the injection of nano aperture principle class is combined (injected plastics material layer), in the present invention one In a little embodiments, the shell two sides of electronic equipment is required to colour, and therefore described injected plastics material can also be 5 Line aluminium alloy, 6 line aluminium alloys or fine aluminium, likewise, for the anodic oxidation effect obtaining, described note In the plastic bed of material, aluminium element content is more than 90%, preferably, noting described in some embodiments of the invention In the plastic bed of material, aluminium element content equally may be greater than 95%.

When described composite is used for electronic equipment casing, preferably, described anodic oxidation material layer Thickness is 0.005～0.3mm, and described resistance to deformation layer thickness is 0.1～1mm, described injected plastics material layer Thickness is 0.005～0.3mm, now, the span of the thickness of electronic equipment casing can be 0.11～1.6mm.

Further, when described composite is used for making phone housing, due to the thickness of phone housing Relatively thin it is preferred that described anodic oxidation layer thickness be 0.005～0.1mm, described resistance to deformation material Thickness degree is 0.4～0.8mm, and described injected plastics material thickness degree is 0.005～0.1mm, and now, electronics sets The span of the thickness of standby shell can be in 0.41～1mm.

The shell of a kind of electronic equipment is provided in the embodiment of the present invention simultaneously, the shell of described electronic equipment by In above-described embodiment, any one composite processing obtains, and the thickness of described electronic equipment casing exists 0.21～90mm, the thickness of described deformable material is 0.005mm～30mm, described anodic oxidation material The thickness of layer is 0.2～30mm.

Also provide a kind of electronic equipment, described electronic equipment includes as mentioned above in the embodiment of the present invention simultaneously The shell of electronic equipment.

The embodiment of in the embodiment of the present invention preparation method of composite is described below.

Refer to Fig. 3, in the embodiment of the present invention, an embodiment of the preparation method of composite includes：

301st, anodic oxidation material, resistance to deformation material are chosen；

Wherein, the yield strength 300～1500MPa of described resistance to deformation material, elastic modelling quantity 65～300GPa； Described resistance to deformation material includes aluminum alloy materials (as in 7 line aluminium alloys 7075 etc.), aluminum matrix composite, Stainless steel material, alloy ferrous materials, amorphous alloy material, in magnesium alloy, or magnesium base composite material extremely Few one kind；Described anodic oxidation material is 5 line aluminium alloys, 6 line aluminium alloys or fine aluminium, described anodic oxidation In material layer, aluminium element content is more than 90%；

In the present embodiment, described anodic oxidation material, described resistance to deformation material can be in all powder or piece Material shape.

Optionally, in the case that described resistance to deformation material includes aluminum alloy materials, described resistance to deformation material Graphene, multi-walled carbon nano-tubes, at least one in nickel-plated carbon SiClx can also be included.

302nd, described anodic oxidation material, described resistance to deformation material are carried out compression process, obtain double-deck material Embryo；

In the present embodiment, described compression process can be sintering, extrusion molding or roll forming.

In the case that described anodic oxidation material and described resistance to deformation material are all in powder, described by institute State anodic oxidation material, described resistance to deformation material carries out compression process, obtain double-deck material embryo, can include：

As an alternative embodiment of the invention, equal in described anodic oxidation material and described resistance to deformation material In the case of powder；

Described bilayer idiosome is placed in sintering furnace, with the ramp of 2 DEG C/min～5 DEG C/min to 0.80Tm ～0.90Tm, is incubated 15min～35min；Again Tm is warming up to the heating rate of 9 DEG C/min～18 DEG C/min Temperature, is then cooled to 0.80Tm～0.90Tm with the speed of 9 DEG C/min～18 DEG C/min, continues insulation 70min～105min, obtains double-deck material embryo after cooling.Wherein, described anodic oxidation material powder is average Particle diameter D1 meets：0 μm of ＜ D1≤60 μm, preferably 0 μm ＜ D1≤30 μm, described resistance to deformation material powder Mean diameter D2 meet：0 μm of ＜ D2≤60 μm, preferably 0 μm ＜ D1≤30 μm.

The powder of described anodic oxidation material is suppressed, is obtained the anodic oxidation material of 0.005～30mm Idiosome；The powder of described resistance to deformation material is layered on described anodic oxidation material idiosome and is suppressed, Obtain the double-deck idiosome of 0.205～60mm, specifically can include：Powder mould in the smooth all round closure in bottom Tool (can pre-production good, the powder mould of such as quadrilateral structure, size does not limit) tiling anodic oxidation Material powder, (by hand or and is utilized smooth for the compacting of anodic oxidation material powder with the smooth instrument in bottom Machinery equipment is suppressed), obtain anodic oxidation material idiosome；Resistance to deformation material powder is laid in described anode On oxidation material idiosome；It is pressed into double-deck idiosome together.

In the case that described anodic oxidation material and described resistance to deformation material are all in sheet, described by institute State anodic oxidation material, described resistance to deformation material carries out compression process, obtain double-deck material embryo, specifically permissible Including：

Described anodic oxidation material in sheet and the described resistance to deformation material in sheet are passed through extruding Shape or roll forming obtains double-deck material embryo.

In described anodic oxidation material and described resistance to deformation material, one is in powder, and one is in sheet In the case of, described described anodic oxidation material, described resistance to deformation material are carried out compression process, obtain Double-deck material embryo, specifically can include：To be in powder in described anodic oxidation material, described resistance to deformation material The material of shape is compressed to idiosome, and sintered be cooled to expect embryo；By described anodic oxidation material, described anti- It is in material and described material embryo, the molding by extrusion or roll forming of sheet in deformable material, obtain double Layered material embryo.

303rd, described double-deck material embryo is carried out heat treatment under the heat treating regime of described resistance to deformation material strong Change, obtain double-layer composite material.

In the present embodiment, the effect of heat treatment is the intensity increasing composite on the basis of material embryo, institute Stating heat treating regime can be T6 heat treating regime, T8 heat treating regime, T4 heat treating regime, T5 heat Resolving system or T2 heat treating regime etc..

When described resistance to deformation material is a kind of, under the heat treating regime of this resistance to deformation material, carry out heat Process strengthening, obtain double-layer composite material, for example described resistance to deformation material is aluminum alloy materials, titanium alloy Material, aluminum matrix composite, stainless steel material, alloy ferrous materials, amorphous alloy material, magnesium alloy, Or when a kind of in magnesium base composite material, then carry out heat treatment under the heat treating regime of this resistance to deformation material strong Change, when described resistance to deformation material is multiple material, then in the heat treatment system of the base material of this resistance to deformation material Carry out heat treatment reinforcement, for example described resistance to deformation material includes Graphene, multi-walled carbon nano-tubes, plating under degree At least one in nickel carborundum and aluminum alloy materials, then carried out under the heat treating regime of aluminum alloy materials Heat treatment reinforcement.

In the embodiment of the present invention, after making obtains double-layer composite material, temperature is carried out to double-layer composite material It is swaged into shape, forms electronic equipment casing general shape, then again through computer numerically-controlled machine tool (English Full name：Computerized Numerical Control Machine, English abbreviation：CNC) it is processed into electricity Sub- device housings, the electronic equipment casing top layer (anodic oxidation material layer) after CNC is processed carries out sun Pole heat-tinting is processed, and above-mentioned warm forging shapes and CNC processes the shape with electronic equipment casing design itself Correlation, does not repeat herein one by one.

With reference to a concrete application scene, embodiment described in Fig. 3 of the present invention is described：

In this specific embodiment, described anodic oxidation material is pure aluminium powder, and described resistance to deformation material is 7075 Al alloy powder；

Step one：Choose pure aluminium powder, purity is 99.7%, and mean diameter is 15 μm about；Choose 7075 Al alloy powder, mean diameter is 15 μm about；

Step 2：First 7075 powder are laid in below previously prepared square powder mould, compacting is (light Densification realification) obtain idiosome；Again pure aluminium powder is laid on 7075 Al alloy powders, then with pure Aluminium powder is suppressed (weight densification) together and is become double-deck material embryo；

Step 3：Double-deck material embryo is placed in sintering furnace, is closed to 7075 aluminum with the ramp of 3 DEG C/min The 0.85Tm (Tm is 7075 aluminium alloy fusing points, similar below) of gold, is incubated 20min；Again with 15 DEG C/min Heating rate be warming up to Tm temperature, then 0.85Tm is cooled to the speed of 15 DEG C/min, continues to protect Warm 70min, can obtain double-deck material embryo after its cooling；

Step 4：Described double-deck material embryo is carried out heat treatment under the T6 heat treating regime of 7075 aluminium alloys Strengthening, obtains double-layer composite material.

The double-layer composite material upper strata now obtaining is fine aluminium, and lower floor is 7075 aluminium alloys.

In the embodiment of the present invention, light densification realification is the idiosome obtaining consistency more than 60%；Weight is close Realification is the idiosome (similarly hereinafter) obtaining consistency more than 80%.

With reference to another concrete application scene, embodiment described in Fig. 3 of the present invention is described：

In this specific embodiment, described anodic oxidation material is 6061 Al alloy powders, described resistance to deformation material Expect for 7075 Al alloy powders and aluminium base graphene film；

Step one：Choose 6061 Al alloy powders, mean diameter is 20 μm about；Choose 7075 aluminum to close Bronze end, mean diameter is 18 μm about, chooses the aluminium base graphene film that thickness is 4nm；

Step 2：It is laid in after first 7075 Al alloy powders and aluminium base graphene film uniformly being mixed and make in advance Below standby square powder mould, light densification realification obtains idiosome；Again 6061 Al alloy powders are tiled On this idiosome, suppress (weight densification) together with then with 6061 Al alloy powders and become double-deck idiosome；

Step 3：Double-deck material embryo is placed in sintering furnace, with the ramp of 5 DEG C/min to aluminium base Graphene 0.9Tm (Tm is the fusing point of 7075 aluminium alloys, similar below), be incubated 25min；Again with 13 DEG C/min Heating rate be warming up to Tm temperature, then 0.9Tm is cooled to the speed of 13 DEG C/min, continues to protect Warm 80min, can obtain double-deck material embryo after its cooling；

Step 4：Described double-deck material embryo is carried out heat treatment reinforcement under the T8 heat treating regime of aluminium base, obtains To double-layer composite material.

Now, the double-layer composite material upper strata obtaining is 6061 aluminium alloys, and lower floor is that aluminium base Graphene is combined Material.

The preparation method of double-layer composite material presented hereinbefore, is described below the preparation method of 3-layer composite material, Refer to Fig. 4, in the embodiment of the present invention, an embodiment of the preparation method of composite includes：

401st, anodic oxidation material, resistance to deformation material and injected plastics material are chosen；

Wherein, the yield strength 300～1500MPa of described resistance to deformation material, elastic modelling quantity 65～300GPa； Described resistance to deformation material includes aluminum alloy materials, aluminum matrix composite, stainless steel material, steel alloy iron material At least one of material, amorphous alloy material, magnesium alloy, or magnesium base composite material；Described anodic oxidation material Expect that for 5 line aluminium alloys, 6 line aluminium alloys or fine aluminium, in described anodic oxidation material layer, aluminium element content is more than 90%；

In the present embodiment, described injected plastics material can be 5 line aluminium alloys, 6 line aluminium alloys or fine aluminium, described In anodic oxidation material layer, aluminium element content is more than 90%.

In the present embodiment, described anodic oxidation material, described resistance to deformation material and described injected plastics material Think powder or sheet；

It should be noted that in the case that described resistance to deformation material includes aluminum alloy materials, described resistance Shape material can also include Graphene, multi-walled carbon nano-tubes, at least one in nickel-plated carbon SiClx.

402nd, described anodic oxidation material, described resistance to deformation material and described injected plastics material are carried out at compacting Reason, obtains three layered material embryos；

Wherein, the intermediate layer of described three layered material embryos is resistance to deformation material layer, and described resistance to deformation material is repressed Form described resistance to deformation material layer, described compression process can include sintering, extrusion molding or roll after process Make at least one of shape.

It should be noted that being in powder, described in described anodic oxidation material and described resistance to deformation material Injected plastics material be in sheet in the case of, described by described anodic oxidation material, described resistance to deformation material and institute State injected plastics material and carry out compression process, obtain three layered material embryos, described resistance to deformation material is repressed process after shape The resistance to deformation material layer becoming is located at the intermediate layer of described three layered material embryos, specifically can include：

Wherein, if described resistance to deformation material is to be made of a variety of materials, Tm is any of which material Fusing point or material melting point highest melting point values.

Wherein, described anodic oxidation material powder and described resistance to deformation material powder are pressed into double-deck idiosome, Can also include：In the powder mould tiling resistance to deformation material powder of the smooth all round closure in bottom, by resistance Shape material powder is smooth, obtains resistance to deformation material powder idiosome；Anodic oxidation material powder is laid in institute State on resistance to deformation material powder idiosome；By anodic oxidation material powder and described resistance to deformation material powder embryo Body is pressed into double-deck idiosome together.

As an alternative embodiment of the invention, in described anodic oxidation material and described resistance to deformation material it is in In the case that powder, described injected plastics material are in sheet；

In described anodic oxidation material, the described resistance to deformation material and described injected plastics material feelings all in powder Under condition, described described anodic oxidation material, described resistance to deformation material and described injected plastics material are suppressed Process, obtain three layered material embryos, described resistance to deformation material is repressed process after the resistance to deformation material layer position that formed In the intermediate layer of described three layered material embryos, including：

As an alternative embodiment of the invention, described anodic oxidation material, described resistance to deformation material and In the case that described injected plastics material is all in powder；

In described anodic oxidation material, the described resistance to deformation material and described injected plastics material feelings all in sheet Under condition, described described anodic oxidation material, described resistance to deformation material and described injected plastics material are suppressed Process, obtain three layered material embryos, specifically can include：

One of which material in described anodic oxidation material, described resistance to deformation material and described injected plastics material In powder, in addition bi-material be in sheet in the case of, described by described anodic oxidation material, institute State resistance to deformation material and described injected plastics material carries out compression process, obtain three layered material embryos, specifically include：

Material by powder in described anodic oxidation material, described resistance to deformation material and described injected plastics material It is compressed to idiosome；

403rd, described three layered material embryos are carried out heat treatment under the heat treating regime of described resistance to deformation material strong Change, obtain 3-layer composite material.

In the embodiment of the present invention, after making obtains 3-layer composite material, temperature is carried out to 3-layer composite material It is swaged into shape, forms electronic equipment casing general shape, then again through computer numerically-controlled machine tool (English Full name：Computerized Numerical Control Machine, English abbreviation：CNC) it is processed into electricity Sub- device housings, the electronic equipment casing top layer (anodic oxidation material layer) after CNC is processed carries out sun Pole heat-tinting is processed, and simultaneously at electronic equipment casing innermost layer (injected plastics material layer), carries out nanometer injection Shape to process and be combined with plastic parts, above-mentioned warm forging shapes and CNC processing and electronic equipment design itself Shape related, do not repeat one by one herein.

With reference to a concrete application scene, embodiment described in Fig. 4 of the present invention is described：

In this specific embodiment, described anodic oxidation material is pure aluminium powder, and described resistance to deformation material is 7075 Al alloy powder, described injected plastics material is 6063 aluminum alloy sheet；

Step one：Choose pure aluminium powder, purity is 99.7%, and mean diameter is 16 μm about；Choose 7075 Al alloy powder, mean diameter is 15 μm about；Choose 6063 aluminum alloy sheet, thickness is 0.5mm；

Step 2：First 7075 powder are laid in below previously prepared square powder mould, light densification Realification obtains idiosome；(weight is close again pure aluminium powder to be laid on 7075 Al alloy powders compacting together Realification) become double-deck material embryo；

Step 3：Double-deck material embryo is placed in sintering furnace, with the ramp of 3 DEG C/min to 7075 0.8Tm (Tm is 70575 aluminium alloy fusing points, similar below), is incubated 20min；Again with 15 DEG C/min Heating rate be warming up to Tm temperature, then 0.90Tm is cooled to the speed of 15 DEG C/min, continues to protect Warm 70min, can obtain double-deck material embryo after its cooling；

Step 4：6063 sheet material 0.3mm are placed in (can according to different thickness requirements under double-deck material embryo At least a piece of to place), then extrusion molding simultaneously, obtain three layered material embryos of sandwich structure, wherein go up Layer is fine aluminium, and middle level is 7075 aluminium alloys, and lower floor is 6063 aluminium alloys；

Step 5：Described three layered material embryos are carried out heat treatment under the T6 heat treating regime of 7075 aluminium alloys Strengthening, obtains 3-layer composite material.

The composite now obtaining, upper strata is fine aluminium, intermediate layer is 7075 aluminium alloys, and lower floor is 6063 Aluminium alloy.

After obtaining 3-layer composite material, this 3-layer composite material can be carried out with warm forging shaping, form handss Machine shell general shape, then CNC is processed into phone housing again, the phone housing after CNC is processed Top layer (anodic oxidation material layer) carries out anode oxidation coloration process (coloring is shades of colour), exists simultaneously Phone housing nexine (injected plastics material layer), is carried out a nanometer injection molded process and is combined with plastic parts.

With reference to another concrete application scene, embodiment described in Fig. 4 of the present invention is described：

In this specific embodiment, described anodic oxidation material is 6061 Al alloy powders, described resistance to deformation material Expect for 7075 Al alloy powders and multi-walled carbon nano-tubes, described injected plastics material is 6063 aluminum alloy sheet；

Step one：Choose 6061 Al alloy powders, mean diameter is 18 μm about；Choose 7075 aluminum to close Bronze end, mean diameter is 18 μm about, chooses 6063 aluminum alloy sheet, and thickness is 0.7mm, with And multi-walled carbon nano-tubes；

Step 2：It is laid in after first 7075 Al alloy powders and multi-walled carbon nano-tubes uniformly being mixed and make in advance Below standby square powder mould, light densification realification obtains idiosome；Again 6061 Al alloy powders are tiled On this idiosome, compacting (weight densification) becomes double-deck idiosome together；

Step 3：Double-deck idiosome is placed in sintering furnace, with the ramp of 4 DEG C/min to 7075 0.9Tm (Tm is the fusing point of 7075 aluminium alloys, similar below), is incubated 25min；Again with 13 DEG C/min Heating rate be warming up to Tm temperature, then 0.85Tm is cooled to the speed of 13 DEG C/min, continues to protect Warm 85min, can obtain double-deck material embryo after its cooling；

Step 4：6061 sheet materials are placed under double-deck material embryo, then extrusion molding simultaneously, obtain Sanming City Control three layered material embryos of structure, it is 6061 aluminium alloy layers at the middle and upper levels, middle level is 7075 aluminium alloys and Duo Bi CNT, lower floor is 6061 aluminium alloys；

Step 5：Described three layered material embryos are carried out heat treatment under the T8 heat treating regime of 7075 aluminium alloys Strengthening, obtains 3-layer composite material.

In this specific embodiment, described anodic oxidation material is pure aluminium powder, and described resistance to deformation material is 7075 Al alloy powder, CNT and Graphene Al alloy powder, described injected plastics material is 6063 aluminum alloy sheets Material；

Step one：Choose pure aluminium powder, purity is 99.85%, and mean diameter is 25 μm about；Choose 7075 Al alloy powders, mean diameter is 28 μm about；Choose 6063 aluminum alloy sheet, thickness is 0.7mm；And multi-walled carbon nano-tubes, and the blocky graphite alkene that average about 5nm is thick；

Step 2：It is laid in after first 7075 powder, multi-walled carbon nano-tubes and blocky graphite alkene uniformly being mixed Below previously prepared square powder mould, light densification realification obtains idiosome, wherein CNT account for mixed The percent by volume closing powder is 2% about；Again 6061 Al alloy powders are laid on this idiosome, Compacting (weight densification) becomes double-deck idiosome together；

Step 3：Double-deck idiosome is placed in sintering furnace, with the ramp of 2 DEG C/min to 7075 0.85Tm (Tm is fusing point, similar below), is incubated 35min；Again with the heating rate liter of 11 DEG C/min Temperature, to Tm temperature, is then cooled to 0.85Tm with the speed of 11 DEG C/min, continues insulation 90min, treats Double-deck material embryo can be obtained after its cooling；

Step 4：6063 sheet materials are placed under double-deck material embryo (to be placed at least a piece of) according to thickness needs, Then extrusion molding simultaneously, obtains three layered material embryos of sandwich structure, and it is 6061 aluminium alloy layers at the middle and upper levels, Middle level is 7075 aluminium alloys, wall carbon nano tube and blocky graphite alkene, and lower floor is 6063 aluminium alloys；

In this specific embodiment, described anodic oxidation material is 6063 Al alloy powders, described resistance to deformation material Expect for 7075 Al alloy powders, plate Ni silicon carbide powder and blocky graphite alkene, described injected plastics material is 6063 Aluminum alloy sheet；

Step one：Choose 6063 Al alloy powders, mean diameter is 35 μm about；Choose 7075 aluminum to close Bronze end, mean diameter is 22 μm about；Choose 6063 aluminum alloy sheet, thickness is 0.7mm；With And plating Ni silicon carbide powder, 10 μm about of mean diameter, and the blocky graphite alkene that average about 6nm is thick；

Step 2：Flat after first 7075 powder, plating Ni silicon carbide powder and blocky graphite alkene uniformly being mixed It is laid on below previously prepared square powder mould, light densification realification obtains idiosome, wherein plate Ni carbonization The percent by volume that Si powder accounts for mixed-powder is 3% about, and Graphene percent by volume accounting is 2% left side Right；Again 6063 Al alloy powders are laid on this idiosome and are pressed into extra quality embryo together, weight densification；

Step 3：Double-deck idiosome is placed in sintering furnace, with the ramp of 4 DEG C/min to 7075 0.82Tm (Tm is the fusing point of 7075 aluminium alloys, similar below), is incubated 25min；Again with 16 DEG C/min Heating rate be warming up to Tm temperature, then 0.82Tm is cooled to the speed of 14 DEG C/min, continues to protect Warm 100min, can obtain double-deck material embryo after its cooling；

Step 4：Fine aluminium sheet material 2mm is placed under double-deck material embryo, then roll forming simultaneously, obtains Three layered material embryos of sandwich structure, it is 6063 aluminium alloy layers at the middle and upper levels, and middle level is 7075 base silicon carbides Graphene aluminium alloy, lower floor is fine aluminium；

In this specific embodiment, described anodic oxidation material is pure aluminium powder, and described resistance to deformation material is 7075 Al alloy powder, graphene film, described injected plastics material is pure aluminium powder；

Step one：Choose pure aluminium powder, purity is 99.7%, and mean diameter is 15 μm about；Choose 7075 Al alloy powder, mean diameter is the graphene film that 15 μm about average thicknesss are 4nm；

Step 2：First pure aluminium powder is laid in below previously prepared square powder mould, light densification Realification obtains idiosome, then is laid on this idiosome by after 7075 powder and Graphene mix homogeneously, light pressure Densification obtains double-deck material embryo；Suppress (weight by evenly laid out for the pure aluminium powder material embryo in this bilayer together again Densification realification) become three layers of idiosome；

Step 3：Three layers of idiosome are placed in sintering furnace, with the ramp of 2 DEG C/min to 0.8Tm (Tm For the fusing point of 7075 aluminium alloys, similar below), it is incubated 15min；Again with the heating rate of 17 DEG C/min It is warming up to Tm temperature, then 0.8Tm is cooled to the speed of 10 DEG C/min, continue insulation 75min, Three layered material embryos can be obtained after its cooling；

Step 4：To three layered material embryo extrusion moldings, obtain the 3-layer composite material of sandwich structure, wherein Upper strata is fine aluminium, and middle level is 7075 aluminum Graphene alloys, and lower floor is pure aluminum alloy；

Step 5：Described three layered material embryos are carried out heat treatment under the T5 heat treating regime of 7075 aluminium alloys Strengthening, obtains 3-layer composite material.

In this specific embodiment, described anodic oxidation material is pure aluminium powder, and described resistance to deformation material is 7075 Al alloy powder, described injected plastics material is fine aluminium sheet material；

Step one：Choose pure aluminium powder, purity is 99.7%, and mean diameter is 15 μm about；Choose 7075 Al alloy powder, mean diameter is 15 μm about；Choose fine aluminium sheet material, thickness is 1mm；

Step 2：Flat after first 7075 powder, plating Ni silicon carbide powder and blocky graphite alkene uniformly being mixed It is laid on below previously prepared square powder mould, light densification realification obtains idiosome；Again by pure aluminium powder It is laid in and suppress (weight densification) on this idiosome together with this idiosome and become double-deck idiosome；

Step 3：Double-deck idiosome is placed in sintering furnace, with the ramp of 3 DEG C/min to 0.88Tm (Tm For the fusing point of 7075 aluminium alloys, similar below), it is incubated 30min；Again with the heating rate of 10 DEG C/min It is warming up to Tm temperature, then 0.88Tm is cooled to the speed of 10 DEG C/min, continue insulation 85min, Double-deck material embryo can be obtained after its cooling；

Step 4：Fine aluminium sheet material is placed under double-deck material embryo (to be needed to place one or more pieces according to thickness), Then roll forming simultaneously, obtains the 3-layer composite material of sandwich structure, and it is fine aluminium at the middle and upper levels, in Layer is 7075 aluminium alloys, lower floor's fine aluminium；

Step 5：Described three layered material embryos are carried out heat treatment under the T4 heat treating regime of 7075 aluminium alloys Strengthening, obtains 3-layer composite material.

It should be understood that disclosed structures and methods in several embodiments provided herein, Can realize by another way.For example, in method specific embodiment described above, it is every The numerical value value of parameter is only example it is to be understood that they are in respective numerical value span Value, not because as limit.

In the above-described embodiments, the description to each embodiment all emphasizes particularly on different fields, and does not have in certain embodiment The part describing in detail, may refer to the associated description of other embodiment.

The above, above example only in order to technical scheme to be described, is not intended to limit； Although being described in detail to the present invention with reference to the foregoing embodiments, those of ordinary skill in the art should Work as understanding：It still can be modified to the technical scheme described in foregoing embodiments, or to it Middle some technical characteristics carry out equivalent；And these modifications or replacement, do not make appropriate technical solution Essence depart from various embodiments of the present invention technical scheme spirit and scope.

Claims

1. a kind of composite is it is characterised in that be applied to electronic equipment casing, including resistance to deformation material Layer and anodic oxidation material layer, pass through smelting between described resistance to deformation material layer and described anodic oxidation material layer Gold combines or solid phase binding, and described land thickness is within 0.5mm；

2. composite according to claim 1 it is characterised in that

3. composite according to claim 1 and 2 it is characterised in that

Described injected plastics material thickness degree is 0.005～30mm.

4. the composite according to any one of claims 1 to 3 it is characterised in that

5. the composite according to any one of claims 1 to 3 it is characterised in that

6. the shell of a kind of electronic equipment is it is characterised in that the shell of described electronic equipment will by such as right Arbitrary described composite processing in 1 to 5 is asked to obtain, the thickness of the shell of described electronic equipment exists 0.21～90mm, the thickness of described deformable material is 0.005mm～30mm, described anodic oxidation material The thickness of layer is 0.2～30mm.

7. a kind of electronic equipment is it is characterised in that include the outer of electronic equipment as claimed in claim 6 Shell.

8. a kind of composite material and preparation method thereof is it is characterised in that include：

9. method according to claim 8 it is characterised in that

10. method according to claim 8 or claim 9 it is characterised in that

11. methods any one of according to Claim 8 to 10 it is characterised in that

12. methods any one of according to Claim 8 to 10 it is characterised in that

13. methods any one of according to Claim 8 to 10 it is characterised in that

A kind of 14. composite material and preparation method thereofs are it is characterised in that include：

15. methods according to claim 14 it is characterised in that

16. methods according to claims 14 or 15 it is characterised in that

17. methods according to any one of claim 14 to 16 it is characterised in that

18. methods according to any one of claim 14 to 16 it is characterised in that

19. methods according to any one of claim 14 to 16 it is characterised in that

20. methods according to any one of claim 14 to 16 it is characterised in that